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Download the Software Installation and follow the instructions below.
- Follow these instructions once you receive your Xtreme Performance Tool.
- Follow these Instructions to Upload and Write the Modified file.
- Follow these instructions to revert back to your Original ECU File.
- These Instructions are specifically for the BMW F90 M5.
- Reference this troubleshooting guide if you are having difficulties with the Xtreme Client Software or the Xtreme Performance Tool